Single top and Higgs associated production in the minimal $B-L$ model at the LHC

Abstract

In this paper, we study the single top production in association with a Higgs boson in the $U(1{)}_{B-L}$ extension of the Standard Model at the LHC. We calculate the production cross sections of the processes $pp\to thX(h=H_1,H_2;X=j,b,W)$ in this model. Then we further study the observability of the process $pp\to t{H}_{2}j$ through $pp\to t(\to q\overline{q^{\prime }}b)H_2(\to 4\ell )j$. We find that the systematic significance can be improved obviously, but it is still challenging for the 14 TeV LHC with high-luminosity to detect this signal.